Strong pickup-channel coupling effects in proton scattering: The case of p+{sup 10}Be

Journal Article · Wed Aug 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.024601· OSTI ID:21061961

Mackintosh, R S; Keeley, N ^[1]

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1. Department of Physics and Astronomy, The Open University, Milton Keynes MK7 6AA (United Kingdom)

The dynamic polarization potential (DPP) contribution to the effective proton-nucleus interaction, that is due to the coupling of deuteron channels, is evaluated by applying S{sub lj}{yields}V(r) inversion to the elastic channel S-matrix from coupled reaction channel calculations of proton elastic scattering. This was done for protons scattering from {sup 10}Be at 12, 13, 14, 15, and 16 MeV; nonorthogonality corrections were included. We find a consistent pattern of a repulsive real and an absorptive imaginary DPP, with the absorption shifted to a larger radius. This is consistent with what has been found for proton scattering from the neutron skin nucleus {sup 8}He. The DPP is not of a form that can be represented by a renormalization of the bare potential, and has properties suggesting an underlying nonlocal process. We conclude that deuteron channels cannot be omitted from a full theoretical description of the proton-nucleus interaction (optical potential)

• OSTI ID: 21061961
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABSORPTION
BERYLLIUM 10
BERYLLIUM 10 TARGET
CORRECTIONS
COUPLING
DEUTERONS
ELASTIC SCATTERING
HELIUM 8
MEV RANGE
NEUTRONS
NUCLEAR POTENTIAL
OPTICAL MODELS
PICKUP REACTIONS
POLARIZATION
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
PROTONS
RENORMALIZATION
S MATRIX